Audi A5 2025 — technical service bulletin
Bulletin TSB_2080446_3 · NHTSA communication 11034687 · issued Jun 25, 2026
Technical service bulletin
communication type
Engine
component
2025
model years
3
vehicle entries
Official summary
This bulletin provides information when the exhaust emissions warning lamp lights up in the instrument cluster; DTC PC01C400 (sumptom 46314, 46312).
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.